Paleontology
- Paleontology
This early sauropod went from walking on four legs to two as it grew
A new computer analysis shows how Mussaurus patagonicus' center of gravity changed as the dinosaur grew.
- Paleontology
A tiny mystery dinosaur from New Mexico is officially T. rex’s cousin
A newly identified dinosaur species called Suskityrannus hazelae fills a gap in tyrannosaur lineage.
- Paleontology
A dinosaur’s running gait may reveal insights into the history of bird flight
In what may have been a precursor to avian flight, a flightless winged dinosaur may have flapped its wings as it jogged.
- Paleontology
Peruvian fossils yield a four-legged otterlike whale with hooves
A newly discovered species of ancient whale unearthed in Peru split time between land and sea.
- Paleontology
New fossils may capture the minutes after the dinosaur-killing asteroid impact
North Dakota fossils may depict the aftermath of the dinosaur-killing asteroid, but controversial claims about the breadth of the find are unproven.
- Paleontology
Saber-toothed cats were fierce and family-oriented
New details shift the debate on whether Smilodon lived and hunted in packs, and answer questions about other behaviors and abilities.
- Paleontology
Newfound fossils in China highlight a dizzying diversity of Cambrian life
A new treasure trove of Cambrian fossils in China dating to 518 million years ago could rival Canada’s Burgess Shale.
- Paleontology
In a first, a fossilized egg is found preserved inside an ancient bird
Scientists have found the first known fossil of a bird that died with an unlaid egg inside its body. The egg has been crushed by pressure over time.
- Paleontology
A new T. rex exhibit takes a deep dive into the iconic dinosaur
“T. rex: The Ultimate Predator,” a new exhibit in New York City, draws on the latest science to provide a fresh look at Tyrannosaurus rex and its relatives.
- Climate
Dueling dates for a huge eruption reignite the debate over dinosaurs’ death
New dating techniques for the Deccan Traps volcanic eruptions disagree on whether they were the main culprit in the dinosaurs’ demise.
- Paleontology
A deer-sized T. rex ancestor shows how fast tyrannosaurs became giants
A newly found dinosaur called Moros intrepidus fills a hole in the evolutionary history of tyrannosaurs, helping narrow when the group sized up.
- Animals
A rare, ancient case of bone cancer has been found in a turtle ancestor
A 240-million-year-old fossil reveals the oldest known case of bone cancer in an amniote, a group that includes mammals, birds and reptiles.
